intractable

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English[edit]

Etymology[edit]

From in- +‎ tractable

Adjective[edit]

intractable (comparative more intractable, superlative most intractable)

  1. Not tractable; not able to be managed, controlled, governed or directed.
    • 1972, Edsger W. Dijkstra, The Humble Programmer (EWD340):
      And I cannot but expect that this will repeatedly lead to the discovery that an initially intractable problem can be factored after all.
  2. (mathematics) Not able to be solved (of a mathematical problem).
  3. Stubborn; obstinate (of a person).
  4. (medicine) Difficult to treat (of a medical condition).

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